Foot-Operated

In the context of industrial equipment, Foot-Operated describes a brake system that is actuated by direct physical force from an operator via a foot pedal. This method is not typically used for the primary safety or holding brakes on large-scale machinery like overhead cranes, but rather for service braking, parking, or auxiliary functions on mobile or smaller equipment where an operator is present.

O mecanismo normalmente envolve:

1. Ligação Mecânica: Um pedal de pé está conectado através de uma série de varas e cabos diretamente a um travão mecânico, como um travão de tambor ou de banda. Ao pressionar o pedal, cria-se tensão na ligação, forçando as superfícies de fricção a engatar.
2. Sistema Hidráulico: Mais comum, o pedal de pé atua sobre um cilindro mestre hidráulico. A força do operador pressuriza o fluido hidráulico, que é então transmitido através de mangueiras para um cilindro escravo no caliper do travão ou cilindro da roda, travando as pastilhas ou sapatas do travão.

Foot-operated brakes are fundamentally active braking systems—they require an operator’s action to apply the brake. This is the opposite of a fail-safe brake, which applies automatically upon loss of power. For this reason, their industrial applications are limited to functions where controlled deceleration or parking is required, such as the service brakes on forklifts, mobile cranes, and various personnel or material transport vehicles used in a plant or on a construction site.